From: Vincent Lejeune <vljn@ovi.com>
Date: Wed, 31 Jul 2013 19:31:41 +0000 (+0000)
Subject: R600: Don't mix LDS and non-LDS instructions in the same group
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a92f8ee2f3ee12d26f6ed0720c763021cfa22ca8;p=oota-llvm.git

R600: Don't mix LDS and non-LDS instructions in the same group

There are a lot of restrictions on instruction groups that contain
LDS instructions, so for now we will be conservative and not packetize
anything else with them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187513 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/R600/R600Packetizer.cpp b/lib/Target/R600/R600Packetizer.cpp
index f4219bd476c..5cf1fd3b665 100644
--- a/lib/Target/R600/R600Packetizer.cpp
+++ b/lib/Target/R600/R600Packetizer.cpp
@@ -161,6 +161,10 @@ public:
       return true;
     if (MI->getOpcode() == AMDGPU::GROUP_BARRIER)
       return true;
+    // XXX: This can be removed once the packetizer properly handles all the
+    // LDS instruction group restrictions.
+    if (TII->isLDSInstr(MI->getOpcode()))
+      return true;
     return false;
   }